300BlkTalk

1) Whether or not powder burns completely in a short bbl (I am a firm believer that it does not), chronograph tests have shown that a 10.x" bbl WILL give more velocity with supersonic ammo than the 8.x" bbl. So, for supersonic hunting purposes, in general, you'll get about 50 yards more k...

Roverhound wrote:Derp.
http://ballisticadvantage.com/9-inch-30 ... eries.html

Thanks... but that is the Modern series, not premium series, and not BA Hanson profile.

I am building an AR for full time suppressed use with supers and subs. This will be my first 300blk rifle. I will buy off the shelf ammo at first but plan to get into reloading. My understanding is that this cartridge burns fully in 9" , but BA doesn't offer a 9" barrel for whatever reason...

+1 for the BA Hanson

This build won't fit the $1800 budget, but you don't have to do it all... a fun read though... https://www.thetruthaboutguns.com/2013/10/foghorn/building-perfect-300-aac-blackout-rifle/ You could substitute Aero Precision uppers and lowers plus a Ballistic Advantage barrel and shave hundreds off his...

I would go for the adjustable gas block and JP silent captured spring as the next steps.

The Ballistic Advantage Hanson barrels are terrific. Well priced as well.